Low Water Cut-Offs
Electronic LWCO
- List Price $430.00 $335.27 / eachSKU: MH1172A3 in stockMcDonnell & Miller 153601 model PSE-801-M-120 low water cut-off 120Vac with test switch and standard probe for steam boilers. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 153601
List Price $430.00 $335.27 / each - List Price $314.49 $235.87 / eachSKU: HY10033 in stockHydrolevel Safgard 550P 120 volt low water cut off with long nut, manual reset, burner circuit test button, and LED indicating lights for hot water boilers. Learn More
- Manufacturer : Hydrolevel
- Part Number : 45-553
List Price $314.49 $235.87 / each - List Price $285.00 $222.22 / eachSKU: MH1114C6 in stockMcDonnell & Miller model number 750T-120 is an electronic low water cut-off control unit for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features an automatic reset, test switch, and LED low water indicator light. It is for use with McDonnell & Miller remote sensors (SKUs MI1550 and MI1551). Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 176206
List Price $285.00 $222.22 / each - List Price $290.00 $226.11 / eachSKU: MH1114DShips within 4 weeksMcDonnell & Miller model number 750MT-120 is an electronic low water cut-off control unit for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. It is for use with McDonnell & Miller remote sensors (SKUs MI1550 and MI1551). Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 176207
List Price $290.00 $226.11 / each - List Price $410.00 $319.67 / eachSKU: MH1114E26 in stockMcDonnell & Miller model number 751P-MT-120 is an electronic low water cut-off control unit, with built-in PA-800 probe, for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features a manual reset and test switch. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 176234
List Price $410.00 $319.67 / each - List Price $425.00 $331.38 / eachSKU: MH1114FShips within 2 weeksMcDonnell & Miller model number 751P-MT-U-120 is an electronic low water cut-off control unit, with built-in PA-800U probe, for use on hot water boilers and as secondary protection on steam boilers. This cut-off unit is 120 volt and features a manual reset and test switch. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 176214
List Price $425.00 $331.38 / each - List Price $405.00 $315.78 / eachSKU: MH1114GShips within 2 weeksMcDonnell & Miller Series 751P 120V probe-type low water cut-off with short probe that provides protection against low water conditions for commercial and industrial applications. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 176295
List Price $405.00 $315.78 / each - List Price $405.00 $315.78 / eachSKU: MH1114H5 in stockMcDonnell & Miller Series 751P 24V probe-type low water cut-off with standard probe that provides protection against low water conditions for commercial and industrial applications. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 176296
List Price $405.00 $315.78 / each - List Price $405.00 $315.78 / eachSKU: MH1114JShips within 2 weeksMcDonnell & Miller Series 751P 24V probe-type low water cut-off with short probe that provides protection against low water conditions for commercial and industrial applications. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 176297
List Price $405.00 $315.78 / each - List Price $440.00 $343.06 / eachSKU: MH1172CShips within 2 weeksMcDonnell & Miller model number PS-801-M-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 153603
List Price $440.00 $343.06 / each - List Price $430.00 $335.27 / eachSKU: MH1173AShips within 2 weeksMcDonnell & Miller model number PSE-802M-24 is an electronic low water cut-off control unit, with probe, for use on steam boilers. This cut-off unit is 24 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 153602
List Price $430.00 $335.27 / each - List Price $440.00 $343.06 / eachSKU: MH1173DShips within 2 weeksMcDonnell & Miller model number PS-802-M-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 24 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe. Learn More
- Manufacturer : McDonnell & Miller
- Part Number : 153604
List Price $440.00 $343.06 / each - List Price $291.00 $229.17 / eachSKU: HY10053 in stockHydrolevel Safguard model 550SV low water cut-off with manual reset, test button, and short probe. This unit interrupts power in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation and lock-out function without lowering the water level. Learn More
- Manufacturer : Hydrolevel
- Part Number : 45-551
List Price $291.00 $229.17 / each - List Price $293.49 $220.12 / eachSKU: HY10061 in stockHydrolevel Safguard model 650SV low water cut-off with automatic reset, test button, and short probe. This unit interrupts power immediately in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation without lowering the water level. Learn More
- Manufacturer : Hydrolevel
- Part Number : 650SV
List Price $293.49 $220.12 / each - List Price $305.55 $229.17 / eachSKU: HY10074 in stockHydrolevel Safguard model 550 low water cut-off with manual reset and test button. This unit interrupts power in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation and lock-out function without lowering the water level. Learn More
- Manufacturer : Hydrolevel
- Part Number : 550
List Price $305.55 $229.17 / each - List Price $293.47 $220.10 / eachSKU: HY10082 in stockHydrolevel Safguard model 650 low water cut-off with automatic reset and test button. This unit interrupts power immediately in a low water condition. The burner circuit locks-out if water remains below probe for 30 seconds. A test button checks burner circuit to ensure proper control operation without lowering the water level. Learn More
- Manufacturer : Hydrolevel
- Part Number : 45-650
List Price $293.47 $220.10 / each - List Price $167.49 $125.62 / eachSKU: HY10107 in stockHydrolevel Safguard model 170 low water cut-off for 160 psi. This LWCO is 120 VAC, has a switching capacity of 5.8 FLA and 34.8 LRA, and has SPDT switch contacts. The 170 Series interrupts power immediately in a low water condition and automatically restarts the burner on return of normal water level. Learn More
- Manufacturer : Hydrolevel
- Part Number : 170
List Price $167.49 $125.62 / each - List Price $177.45 $133.09 / eachSKU: HY1011Ships within 1 business daysHydrolevel Safguard model 170SV low water cut-off with short probe for 160 psi. This LWCO is 120 VAC, has a switching capacity of 5.8 FLA and 34.8 LRA, and has SPDT switch contacts. The 170 Series interrupts power immediately in a low water condition and automatically restarts the burner on return of normal water level. Learn More
- Manufacturer : Hydrolevel
- Part Number : 170SV
List Price $177.45 $133.09 / each - List Price $305.55 $229.17 / eachSKU: HY1001Ships within 1 business daysHydrolevel Safgard 500 24 volt low water cut off with a manual reset, burner circuit test button, and LED indicating lights for hot water boilers. Learn More
- Manufacturer : Hydrolevel
- Part Number : 45-500
List Price $305.55 $229.17 / each - List Price $300.84 $225.63 / eachSKU: HY1002Ships within 1 business daysHydrolevel Safgard 400 24 volt low water cut off with 15-second burner off delay, 30-second burner on delay, automatic rest, and low water indicating light for steam boilers. Learn More
- Manufacturer : Hydrolevel
- Part Number :
List Price $300.84 $225.63 / each